Clamping device.



PATENTED NOV. 22, 1904.

P. HALLADAY.

CLAMPING DEVICE. APPLICATION FILED mfifao, 1903.

no MODEL.

Wifraepas 6 5,

"l I Q I UNITED STATES Patented November 22, 1904.

PATENT @rrica.

CLAMPING DEVICE...

SPECIFICATION forming part of Letters Patent No. 775,399, dated November22, 1904.

Application filed March 80, 1903.

Improvement in Clamping Devices, of which the following is aspecification.-

My invention relates to clamping devices, and has for its objectto'provide-a new and improved device of this description.

My invention is illustrated in the accompanying drawings, wherein Figure1 is a view of a clamping device adapted for use on the neck of astringed instrument, such as a guitar. Fig. 2 is a view of the device ofFig. l as seen from beneath. Fig. 8 is a side view of the device of Fig.1 shown in position. Fig. 4 is a view showing a modified construction.

Like letters refer to like the several figures.

My present invention is applicable to clamping devices of various kinds,but is particularly effective when embodied in the form of a capo tastofor guitars.

Referring now to Figs. 1, 2, and 3, where I have shown a clamp of thisdescription, the device consists of the two members A and B. The memberA is made up of two arms A and A at an angle to each other, one of thearms, A, adapted to extend across the face of the neck of the instrumentand the other, A to project down along the side thereof. The engagingarm A of the member A is preferably provided with some engaging materialC, such as cork, which engages the strings of the instrument. The memberB is movably connected to the member A. As shown in Fig. 1, the arm A ofthe member A is provided near its end with an opening A through whichpasses the other member B. The member B is also bent so as to have twoarms B and B at an angle to each .other. The arm B passes up alongthearm A and is provided with a screw or equivalent device B adapted toengage the member A the parts arranged so that when the screw is turnedthe members A and B are moved to or from each other, so as to clamp orunclamp the device that may be between them. These arms may partsthroughout various kinds.

Serial No. 150,169. (No model.)

be said to be overlapping arms. The member B is also preferably curvedto conform to the shape of the neck of the instrument. The member B isprovided at the point where it passes through the arm A with the groovesor indentations B*, so as to make the part located in the opening in thearm B of smaller cross-sectional area than the remainder of the memberB.

In assembling the device of Fig. 1 when this construction is used themember B is placed in position, and then the parts of the arm A oppositethe grooves or indentations B: are compressed or forced inwardly by anydesired meansas, for example, by means of a blow, thus slightlyindenting the edges of the arm A as shown at B and pressing a part ofthe metal at the side of the opening in the arm A into the grooves orindentations in the member B, thus securely fastening the two memberstogether, but permitting them to move relatively. It will be seen thatby means of this construction I form a simple, cheap, durable, andefficient clamping device and that the bottom and the side and the topof the clamp are free from any projecting parts or screws which mightobstruct the hand in the process of playing the instrument.

In Fig. 4 I have shown a modified construction adapted to be used withclamps of In this figure a bar D is shown provided with a loose. part D,which surrounds the bar D, there being provided an enlarged opening forthis purpose, and which is provided with an engaging projection D whichengages the teeth D on the bar D. This member is adapted to be moved upand down and is held in any given position by means of the projectingpart D engaging the teeth D The parts D and D form a clamping member.The other clamping member, A, is movably orpivotally connected to thebar D, and the arm A is provided with an engaging piece A connectedthereto, the position of which is varied by the screw B Broadlyconsidered, the device of Fig. 4 is the substantial equivalent of thedevice of Fig. 1. Each presents two clamping members, which are, ineffect, bent or shaped so as to form each an angle between two arms.

Two of these arms in each case overlap. In each case one of thesemembers is pivoted at its angle to the end of the other member. in eachcase the two members together form, in effect, a device which inclosesthree sides of the object to be clamped, with the arms overlapping eachother on the middle of these three inclosed sides.

I have described in detail a particular construction embodying myinvention; but it is of course evident that the parts may be greatlyvaried in any particular, and I therefore do not limit myself to theconstruction shown.

I claim 1. A clamping device comprising two clamping members eachconsisting of two arms associated together so as to form an angle, witha movable connection at the end of one member and near the angle of theother to connect the end of one member With the angle of the other sothat two of the arms overlap, and an adjusting connection between theoverlapping arms to vary the distance between the other two arms.

2. A clamping device comprising two clam ping members shaped so thateach has two arms at an angle to each other, two of said arms opposed toeach other with a space for the object to be clamped between them, andthe remaining two arms overlapping and connected together by a movableconnection at the end of one member and near the angle of the other andan adjusting device.

3. A clamping device comprising two clamping members shaped so that eachhas two arms at an angle to each other, two of said arms opposed to eachother with a space for the object to be clamped between them, and theremaining two arms overlapping and connected together by a movableconnection near the end of one member and near the angle of the otherand an adjusting device connected with one arm and engaging the other,substantially shown and described.

LEl/VIS P. HALLADAY.

\Vitnesses:

JOHN C. I-IAswELL, WV. A. FORWARD.

